Our main products are line blind valves, caliber parameter range: DN50~DN5000, pressure parameter up to Class 2500 and also produce other advantageous products, such as butterfly valve, plug valve, and ball valve. We can carry out soft seal, metal seal or customize to your needs.
All productsZZJG's quality valves designed by advanced technologies have been applied for various operating conditions in many industries.
All applicationsHave over 600 skilled technicians, more than 100 research and development engineers, a modern workshop spanning 26,000 square meters.
All Strength
Zhengzhou Jinggong Valve Co., Ltd Is Located In "Hometown Of Valve In China" Gaoshan Town, Xingyang City, Henan Province. It Is A High-Tech Enterprise In One Line Of Development And Design, Production And Manufacturing, Sales And Services. Since Its Development In 1981, Have More Certificates, Including Api Certification, The European Union Ce Certification, Iso9001 Quality System Certification, Iso14001 Environment System Certification, Etc.
In water conservancy systems, flap valve is not used in large numbers, but they very imporant. Its core function is to stop outside water and mediums from flowing back into pipeline systems.It shuts off automatically by its own weight, no need for manual supervision, super easy and convenient to use....
In the complex industrial field of steelmaking, involving high temperatures, high pressures, and flammable and explosive media, absolute isolation of the pipeline system is crucial for ensuring production safety and process stability. Blind valves, also known as spectacle valves or baffle valves, have become indispensable key safety devices in steel plant gas pipelines due to their "physical isolation and zero leakage" performance....
Blind valves are key equipment in the fields of oil, natural gas, and aviation kerosene. It's about safety and responsibility, and its importance is self-evident. Therefore, its Installation Specifications and Technical Points will be introduced here....
In pipeline systems of industries such as petrochemicals, energy and power, metallurgy, and shipbuilding, spectacle blind valves (also known as figure-eight blind valves) serve as core safety isolation components, playing a crucial role in completely shutting off or unblocking pipelines....
High-pressure blind plate valves are important safety isolation devices, mainly used in gas and natural gas pipeline systems to achieve reliable media isolation. Correct use is crucial. The following are the core operating procedures and safety points....
The Spectacle blind (8 blind ) is a critical pipeline component that provides forward isolation. LIne Blind valve are secured to pipelines via flanges and are designed for rapid, effective isolation. Unlike traditional methods....
Choose the appropriate isolation solution: double-blocking pressure relief valve vs. line blind valve. In many industries such as petroleum, line blind valves and double-blocking pressure relief valves (DBB) are important isolation devices.When repairing pipeline lines...
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